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424120331 = 2931471769
BaseRepresentation
bin11001010001111…
…001000000001011
31002120001112201102
4121101321000023
51332033322311
6110030212015
713336651265
oct3121710013
91076045642
10424120331
111a844a978
12ba05400b
1369b3829b
1440482b35
152737a43b
hex1947900b

424120331 has 8 divisors (see below), whose sum is σ = 452899200. Its totient is φ = 396285120.

The previous prime is 424120327. The next prime is 424120349. The reversal of 424120331 is 133021424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 424120331 - 22 = 424120327 is a prime.

It is a super-2 number, since 2×4241203312 = 359756110335099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424120351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234986 + ... + 236783.

It is an arithmetic number, because the mean of its divisors is an integer number (56612400).

Almost surely, 2424120331 is an apocalyptic number.

424120331 is a deficient number, since it is larger than the sum of its proper divisors (28778869).

424120331 is a wasteful number, since it uses less digits than its factorization.

424120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471829.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 424120331 is about 20594.1819696729. The cubic root of 424120331 is about 751.3282129305.

Adding to 424120331 its reverse (133021424), we get a palindrome (557141755).

The spelling of 424120331 in words is "four hundred twenty-four million, one hundred twenty thousand, three hundred thirty-one".

Divisors: 1 29 31 899 471769 13681301 14624839 424120331